Bring UP baremetal bridge
Bring UP baremetal bridge

On some distros releases (Fedora 22 for example) interface is in DOWN state
after creation. Bring it UP.

Change-Id: I402d80ca06bff1012cf45b19e05f38314cca54dc

bacaldwell/ironic,SauloAislan/ironic,dims/ironic,bacaldwell/ironic,pshchelo/ironic,openstack/ironic,dims/ironic,NaohiroTamura/ironic,devananda/ironic,SauloAislan/ironic,pshchelo/ironic,NaohiroTamura/ironic,openstack/ironic,ionutbalutoiu/ironic,ionutbalutoiu/ironic